CVE-2026-44212
Published:May 14, 2026
Updated:May 18, 2026
PrestaShop is an open source e-commerce web application. Prior to 8.2.6 and 9.1.1, there is a stored Cross-Site Scripting (XSS) vulnerability in the PrestaShop back-office Customer Service view. An unauthenticated attacker can submit the public Contact Us form with a malicious email address. The payload is stored in the database and executed when a back-office employee opens the affected customer thread, enabling session hijacking and full back-office takeover. This vulnerability is fixed in 8.2.6 and 9.1.1.
Affected Packages
prestashop/prestashop (PHP):
Affected version(s) >=9.0.0 <9.1.1Fix Suggestion:
Update to version 9.1.1prestashop/prestashop (PHP):
Affected version(s) >=dev-alpha-v9 <8.2.6Fix Suggestion:
Update to version 8.2.6prestashop/prestashop (PHP):
Affected version(s) >=dev-alpha-v9 <8.2.6Fix Suggestion:
Update to version 8.2.6prestashop/prestashop (PHP):
Affected version(s) >=9.0.0 <9.1.1Fix Suggestion:
Update to version 9.1.1Related Resources (2)
Do you need more information?
Contact UsCVSS v4
Base Score:
9.3
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
PASSIVE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
NONE
Subsequent System Confidentiality
HIGH
Subsequent System Integrity
HIGH
Subsequent System Availability
NONE
CVSS v3
Base Score:
9.3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
NONE
Weakness Type (CWE)
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
EPSS
Base Score:
0.06